Watersheds - Ventura County [ds518]

SDE Feature Class

Open this dataset in BIOS

Tags
Ventura County, Primary watersheds, Watershed boundaries, surface, Watersheds, biota, Major watershed boundaries, environment, California


Summary

Create accurate boundaries of all major watersheds entirely or partially within Ventura County

Description

Major watershed areas within Ventura County

Credits

David Magney Environmental Consulting, PO Box 1346, Ojai, CA 93024-1346. David L. Magney

Use limitations

None. User must cite originator. Any changes to data must be identified. The County does not warrant the accuracy of this information, and no decision involving a risk of economic loss or physical injury should be made in reliance thereon.

Extent

West -120.429660 East -117.949386
North 35.273852 South 33.768367

Scale Range
Maximum (zoomed in) 1:5,000
Minimum (zoomed out) 1:150,000,000

ArcGIS Metadata

Topics and Keywords

Themes or categories of the resource environment, biota, boundaries


* Content type Downloadable Data


Place keywords Ventura County, California

Stratum keywords surface

Thesaurus
Title CERES




Theme keywords Primary watersheds, Watershed boundaries, Watersheds, Major watershed boundaries

Theme keywords biota, environment

Thesaurus
Title ISO 19115 Topic Category




Citation

* Title DS0518_20091014
Publication date 2005-09-26


Edition 2


Presentation formats * digital map


Citation Contacts

Responsible party
Individual's name Jose Moreno
Organization's name Ventura County Resources Management Agency
Contact's position GIS Supervisor
Contact's role point of contact


Contact information


Responsible party
Individual's name David L. Magney
Organization's name David Magney Environmental Consulting
Contact's position President
Contact's role originator


Contact information
Phone
Voice 805/646-6045
Fax 805/646-6975

Address
Type postal
Delivery point P.O. Box 1346
City Ojai
Administrative area CA
Postal code 93024-1346
Country US
e-mail address david@magney.org

Hours of service
9 am to 5 pm weekdays


Resource Details

Dataset languages English(UNITED STATES)


Status completed
Spatial representation type * vector


Graphic overview
File name http://www.magney.org/Metadata_Gx/ventura_co_watersheds-dmec.jpg
File description map of major/primary watesheds partially or entirely within Ventura County
File type JPEG

Supplemental information
All primary watersheds entirely or partially within Ventura County are included as separate polygons with names and area attributes
* Processing environment Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.5.1.7333


Credits
David Magney Environmental Consulting, PO Box 1346, Ojai, CA 93024-1346. David L. Magney
ArcGIS item properties
* Name DS0518_20091014
* Location Server=; :; Database=; User=; Version=
* Access protocol ArcSDE Connection

Extents

Extent
Description
publication date
Temporal extent
Date and time 2005-09-26

Extent
Geographic extent
Bounding rectangle
Extent type Extent used for searching
* West longitude -120.429660
* East longitude -117.949386
* North latitude 35.273852
* South latitude 33.768367
* Extent contains the resource Yes

Extent in the item's coordinate system
* West longitude -13406168.437500
* East longitude -13130065.614900
* South latitude 3997741.614300
* North latitude 4201159.078700
* Extent contains the resource Yes

Resource Points of Contact

Point of contact
Individual's name Jose Moreno
Organization's name Ventura County
Contact's position GIS Supervisor
Contact's role point of contact


Contact information


Resource Maintenance

Resource maintenance
Update frequency irregular


Resource Constraints

Legal constraints
Limitations of use
No warrantees provided.
Security constraints
Classification unclassified
Classification system N/A


Constraints
Limitations of use

None. User must cite originator. Any changes to data must be identified. The County does not warrant the accuracy of this information, and no decision involving a risk of economic loss or physical injury should be made in reliance thereon.


Spatial Reference

ArcGIS coordinate system
* Type Projected
* Geographic coordinate reference GCS_WGS_1984
* Projection WGS_1984_Web_Mercator_Auxiliary_Sphere
* Coordinate reference details
Projected coordinate system
Well-known identifier 102100
X origin -20037700
Y origin -30241100
XY scale 10000
Z origin 0
Z scale 1
M origin 0
M scale 1
XY tolerance 0.001
Z tolerance 2
M tolerance 2
High precision true
Latest well-known identifier 3857
Well-known text PROJCS["WGS_1984_Web_Mercator_Auxiliary_Sphere",GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Mercator_Auxiliary_Sphere"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",0.0],PARAMETER["Standard_Parallel_1",0.0],PARAMETER["Auxiliary_Sphere_Type",0.0],UNIT["Meter",1.0],AUTHORITY["EPSG",3857]]

Reference system identifier
* Value 3857
* Codespace EPSG
* Version 8.8(9.3.1.2)


Spatial Data Properties

Vector
* Level of topology for this dataset geometry only


Geometric objects
Feature class name DS0518_20091014
* Object type composite
* Object count 38



ArcGIS Feature Class Properties
Feature class name DS0518_20091014
* Feature type Simple
* Geometry type Polygon
* Has topology FALSE
* Feature count 38
* Spatial index TRUE
* Linear referencing FALSE



Data Quality

Scope of quality information
Resource level dataset




Data quality report - Conceptual consistency
Measure description
The attribute accuracy is estimated to be "good". If a higher proof of data accuracy is required, do not use these data. User is advised to fully and carefully read the 'Distribution Liability' section of this metadata before using these data.




Data quality report - Quantitative attribute accuracy
Measure description
DMEC believes that polygon lines are reasonably accurate at time of mapping. The polygons were established using USGS 7.5-minute topographic quadrangle maps as the basemap. The shapefile was created by manually creating polygon lines for each major watershed using topographic contours to separate watersheds.


Quantitative test results
Value 98 percent accurate


Evaluation method
All attribute fields are considered accurate for the purposed of the resulting map; however, no warrantees to current accuracy are made. Current (present day) conditions may be different than when mapping was performed.




Data quality report - Absolute external positional accuracy
Dimension horizontal


Measure description
Polygon line locations were established by DMEC from USGS 7.5-minute topographic maps.


Quantitative test results
Value 5


Evaluation method
Point location accuracy is based on digitization accuracy, which may vary horizontally 20 feet




Data quality report - Absolute external positional accuracy


Lineage

Process step
When the process occurred
Indeterminate date inapplicable
Description
Theme creation using ArcView 3.3. Polygons were established for each separate major watershed at periodic intervals over a 3-month period. USGS topo quads maps were used as the basis to determine watershed boundaries using topographic contours and guides. Visual interpretation of drainage flow was used to delineate the boundaries.


Process contact
Individual's name David L. Magney
Organization's name David Magney Environmental Consulting
Contact's position President
Contact's role processor


Contact information
Phone
Voice 805/646-6045
Fax 805/646-6975

Address
Type postal
Delivery point P.O. Box 1346
City Ojai
Administrative area CA
Postal code 93024-1346
Country US
e-mail address david@magney.org

Hours of service
9 am to 5 pm weekdays




Process step
Description
Download GPS waypoints




Process step
Description
Convert waypoints to a new projected shapefile




Process step
When the process occurred 2009-03-04
Description
Edited original metadata by adding ISO keywords.


Process contact
Individual's name Greg Ewing
Organization's name California Department of Fish and Game
Contact's role processor


Contact information




Source data
Description
Ventura County Watershed Protection District data used for watershed names. City of Oxnard drainage system data were used to improve/correct watersheds within the city.


Source medium name hardcopyprinting on paper
Resolution of the source data
Scale denominator 0



Geoprocessing history

Process
Process name Project_1
Date 2006-09-0111:27:49
Tool location C:\Program Files\ArcGIS\ArcToolbox\Toolboxes\Data Management Tools.tbx\Project
Command issued
Include in lineage when exporting metadata No


Process
Process name
Date 2009-10-1620:24:15
Tool location C:\Program Files\ArcGIS\ArcToolbox\Toolboxes\Conversion Tools.tbx\FeatureClassToFeatureClass
Command issued
Include in lineage when exporting metadata No


Process
Process name
Date 2011-07-2109:08:24
Tool location C:\Program Files\ArcGIS\ArcToolbox\Toolboxes\Conversion Tools.tbx\FeatureClassToFeatureClass
Command issued
Include in lineage when exporting metadata No


Process
Process name
Date 2013-06-2115:35:09
Tool location c:\program files (x86)\arcgis\desktop10.1\ArcToolbox\Toolboxes\Data Management Tools.tbx\Project
Command issued
Include in lineage when exporting metadata No


Distribution

Distributor
Contact information
Individual's name David L. Magney
Organization's name David Magney Environmental Consulting
Contact's position President
Contact's role distributor


Contact information
Phone
Voice 805/646-6045
Fax 805/646-6975

Address
Type postal
Delivery point P.O. Box 1346
City Ojai
Administrative area CA
Postal code 93024-1346
Country US
e-mail address david@magney.org

Hours of service
9 am to 5 pm weekdays




Distributor
Contact information
Individual's name David L. Magney
Organization's name David Magney Environmental Consulting
Contact's position President
Contact's role distributor


Contact information
Phone
Voice 805/646-6045
Fax 805/646-6975

Address
Type postal
Delivery point P.O. Box 1346
City Ojai
Administrative area CA
Postal code 93024-1346
Country US
e-mail address david@magney.org

Hours of service
9 am to 5 pm weekdays


Ordering process
Terms and fees Handling and Processing fees
Turnaround time
10 days
Instructions
David Magney Environmental Consulting PO Box 1346, Ojai, CA 93024-1346 805/646-6045 david@magney.org



Distribution format
* Name SDE Feature Class


Transfer options
Online source
Location http://bios.dfg.ca.gov

Online source
Location http://www.magney.org/Metadata_Gx/ventura_co_watersheds-dmec.jpg

Fields

Details for object DS0518_20091014
* Type Feature Class
* Row count 38


Field OBJECTID
* Alias OBJECTID
* Data type OID
* Width 4
* Precision 10
* Scale 0
* Field description
Internal feature number.
* Description source
ESRI
* Description of values
Sequential unique whole numbers that are automatically generated.




Field Shape
* Alias Shape
* Data type Geometry
* Width 4
* Precision 0
* Scale 0
* Field description
Feature geometry.
* Description source
ESRI
* Description of values
Coordinates defining the features.




Field NAME
* Alias NAME
* Data type String
* Width 33
* Precision 0
* Scale 0




Field ACRES
* Alias ACRES
* Data type Double
* Width 8
* Precision 19
* Scale 3




Field HECTARES
* Alias HECTARES
* Data type Double
* Width 8
* Precision 19
* Scale 3




Field Shape.STArea()
* Alias Shape.STArea()
* Data type Double
* Width 0
* Precision 0
* Scale 0




Field Shape.STLength()
* Alias Shape.STLength()
* Data type Double
* Width 0
* Precision 0
* Scale 0






Overview Description


Metadata Details

Metadata language English(UNITED STATES)
Metadata character set utf8 - 8 bit UCS Transfer Format


Scope of the data described by the metadata dataset
Scope name * dataset


* Last update 2018-10-23


ArcGIS metadata properties
Metadata format ArcGIS1.0
Metadata style FGDC CSDGM Metadata
Standard or profile used to edit metadata FGDC


Created in ArcGIS for the item 2014-03-0616:37:34
Last modified in ArcGIS for the item 2018-10-2310:56:53


Automatic updates
Have been performed Yes
Last update 2018-10-2310:56:32


Metadata Contacts

Metadata contact
Individual's name Jose Moreno
Organization's name Ventura County
Contact's position GIS Supervisor
Contact's role point of contact


Contact information


Metadata Constraints

Constraints
Limitations of use
Must give credit to creator

Thumbnail and Enclosures

Thumbnail

Enclosure
Enclosure type File
Description of enclosure original metadata
Original metadata document, which was translated yes
Source metadata format fgdc